3221331331091 has 2 divisors, whose sum is σ = 3221331331092. Its totient is φ = 3221331331090.

The previous prime is 3221331331079. The next prime is 3221331331123. The reversal of 3221331331091 is 1901331331223.

It is an a-pointer prime, because the next prime (3221331331123) can be obtained adding 3221331331091 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3221331331091 - 2³⁸ = 2946453424147 is a prime.

It is not a weakly prime, because it can be changed into another prime (3221331331991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610665665545 + 1610665665546.

It is an arithmetic number, because the mean of its divisors is an integer number (1610665665546).

Almost surely, 2^{3221331331091} is an apocalyptic number.

3221331331091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221331331091 is an equidigital number, since it uses as much as digits as its factorization.

3221331331091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 3221331331091 in words is "three trillion, two hundred twenty-one billion, three hundred thirty-one million, three hundred thirty-one thousand, ninety-one".